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In this book cover image released by Viking, "Malcolm X: A Life of Reinvention" by Manning Marable, is shown. Marable, who died in 2011, was awarded the 2012 Pulitzer Prize for History on Monday, April 16, 2012. (AP Photo/Viking)

In this book cover image released by Viking, "Malcolm X: A Life of Reinvention" by Manning Marable, is shown. Marable, who died in 2011, was awarded the 2012 Pulitzer Prize for History on Monday, April 16, 2012. (AP Photo/Viking)